Shedding mechanism for looms.



PATENTED APR. 12, 1904.

IN YEN TUE.

0. L. OWEN. 31111111111111 MECHANISM FORLOOMS.

APPLIOATION FILED JUNE 30, 1902.

No MODEL.

VII 22 1125525."

6&4 71f improvements in means for operating and con the slots (0 a of -the endframes; 6/, one of per series of hooked jacks by means of the UNiTnp STaTes OSCAR L. OWEN, OF WHITINSVILLE, MASSACHUSETTS, ASSIGNOR TO THE Patented April 12,. 1904.

PATENT Ut rine.

SACHUSETTS.

SHEDDENG MEGHANESM Foe tomes.

SPEGIFIGATTON forming partof Letters Patent No. 757,141, dated April 12, 1964. 7

Application filed June so, 1902.

To wZZ w/tom w may concern:

Be it known that I, OsoAR L. OWEN, a citizen bf the United States, residing at Whitinsville, in the county of Worcester andState of Massachusetts, have invented a new and useful Improvement in Shedding Mechanism. for Looms, of which the following is a specification.

This invention relatesto the class of shedding mechanism for looms known as dobties, in which one set of hooked jacks is operated directly by every alternate lever of the set oflevers acted upon by the pattern chain or surface and the other set of hooked jacks is operated by the other set of levers:-

. The object of this invention is to provide trolling the hooked jacks and the levers.

To this end theinvention consists in the Figure l is a vertical section of the dobby, showing one of each of the two series of hooked jacks pivoted on the connector and supported in the raised position above the lifters. Fig. 2 is an elevation of the uppergrate, and Fig. 3 is a sectional view of the same. Fig. 4: is an elevation of the lower grate, and Fig. 5 is a sectional view of the same. Fig. 6 is a plan View of the rocker-bar.

In the drawings, a a indicate the end frames of the dohby; a a, the lifter-bars sliding in the upper series of hooked jacks; a', one of the lower series of hooked jacks; a a, the stops;

a, one of the series of connectors pivotally secured to one of the upper and one of the lower hooked jacks and to the harness-lever a; b, the pattern-chain; b, oneof the series of counterweighted leversdirectly engaging with and su pporting the lower series of hooked jacks a and b one of 'the series of counterweighted levers for supporting one of the uprod 0, bent at its upper end to form the bracket 0, whlch extends nto one of the slots in the upper grate and bears on the under side of the bar 05*.

hooked jack, the lowerend resting on the le-- 'Serial No. 113,839. an man.)

ver b The levers b and 6 are operated at predetermined intervals by the pattern-chain h or a pattern-surface, a projection of which lifts the overweighted end 6 of the lever, causing the lever to rock on the pivotal support 6 and permitting the hooked jack supported by the lever to engage with one of the lifters to operate the harness-lever.

The upper grate d has the slots 03' d,in which the hooked jacks (t of the upper series are guided and separated by the vertical bars d which extend from the top bar 01 to the To securely guide the rods 0, I extend the grate below the bar d, curve the bars diand unite them with the bard. The rod 0 may freely move longitudinally in the opening thus formed and is heldagainst lateral movement by the curved bars at and the bars 0? and (Z The bracket 0 one-the rod extending into the vertical slot in which the jack moves forms an additional guide, which pres vents the rod from turning. A round wire rod may be used for the rod 0. The grate 05', including the guides for the rods 0, are cast in one piece. The guides and collars on therods c are not required, and the cost is materially reduced.

To further economize in the cost of constructioml form the lower grate e and'the grate e, in which the ends of the levers Z) are guided,'-in one casting and provide the same with openings in which the lower partof the rod 0 is guided. Asshown in Figs. 4c and 5, the oblique portion 6 of the grate,"having the slots e in which the hooked jacks a and the ends of the levers I) move, terminates in the cross-bar-ef. It has the cross-bar c ofifset and connected with the slotted part e,.in which the ends of the levers 6 move. The bars e* and c are placed oblique to each other and are connected by the division-bars d ,'so that the grate maybe cast in one piece and the rods 0 may be extended through the slots -of the oblique part 0 and iest'on the plane ends of thelevers I). The grates are respectively provided with the lugs d and 6 which fit into sockets formed in the end frames of the dobby.

To conveniently lift the weighted .endsof the levers [fiend fromthe pattern, 1 provide theend frarnesma with the lugs ff and journal inthe end-frames the lever bar f, having 'dition .the' l'ever bar f rests on the lugs ff.

When-it .is'requlred to lift the levers off from the pattern; "the lever-bar may-be rocked on its jonrnal-bearinfis and all'ftlie levers simultaneously raised, as is indiated in broken lines weighted lever for operating-one of the jacks a lever for operating the other jack by means of az'rod, the rod, an'd'the pattern, of a grate the slotted portion of Ehich has two bars placed oblique .to each otheifv to form the supportsfor the rods supporting the upper acks, one 0 saidbarsalso forming a stop to limit thefinoveinent-of the copntervveighted lever,

as described.

ing bars e @Fland lugs 2. Inbombination with the jack'sg-thelifte ers, the connectors; and the pattern of a shedding mechanism of a loom, of thele'ver b=op erating one-of a series of'jacks the leverfi and the rod-'0' operatlng one of the other' series I of jacks, the grate 01 provided with. the bars andethe'grate e hav e as described.

3. In a shedding mechanism,- the pombinationwiththe jacks and the levers b and b1 of a formed in one casting, the'slotted portion bars e and e ofls'et oblique to each other, as described.

a the grate e having the slottedportions-and 35 e and the slottednportion 2 having the cross- In testimony whereof I have signed my name to this spe'cifieation in the presence of'two sub scribing witnesses.

OSCAR noWE Witnesses: I

J. A. MILLER, Jr.,- 4 ADA E. HAGERTY. 

